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SPECIFICATIONS
Model DC1850
Input.........................................................................................................................................A.C. 120 V 50 Hz – 60 Hz
Output...................................................................................................................................................D.C. 9.6 V – 18 V
Weight.......................................................................................................................................................1.3 kg (2.8 lbs)
CAUTION:
1. SAVE THESE INSTRUCTIONS – This manual contains important safety and operating instructions for battery charger.
2. Before using battery charger, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) prod-
uct using battery.
3. CAUTION– To reduce risk of injury, charge only MAKITA TYPE rechargeable batteries. Other types of batteries may burst
causing personal injury and damage.
4. Non-rechargeable batteries cannot be charged with this battery charger.
5. Use a power source with the voltage specified on the nameplate of the charger.
6. Do not charge the battery cartridge in presence of flammable liquids or gases.
7. Do not expose charger to rain or snow.
8. Never carry charger by cord or yank it to disconnect from receptacle.
9. After charging or before attempting any maintenance or cleaning, unplug the charger from the power source. Pull by plug
rather than cord whenever disconnecting charger.
10. Make sure cord is located so that it will not be stepped on, tripped over, or otherwise subjected to damage or stress.
11. If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualified person in
order to avoid a hazard.
12. Do not operate or disassemble charger if it has received a sharp blow, been dropped, or otherwise damaged in any way;
take it to a qualified serviceman. Incorrect use or reassembly may result in a risk of electric shock or fire.
13. The battery charger is not intended for use by young children or infirm persons without supervision.
14. Young children should be supervised to ensure that they do not play with the battery charger.
15. Do not charge battery cartridge when temperature is BELOW 10°C (50°F) or ABOVE 40°C (104°F).
16. Do not attempt to use a step-up transformer, an engine generator or DC power receptacle.
17. Do not allow anything to cover or clog the charger vents.
Charging
1. Plug the battery charger into the proper AC voltage source.
2. Insert the battery cartridge so that the plus and minus terminals on the battery cartridge are on the same sides as their
respective markings on the charger.
3. When the battery cartridge is inserted fully, the charging light color will flash in red color and charging will begin.
4. When charging is completed, the charging light goes out.
5. After charging, unplug the charger from the power source.
Refer to the table for the charging time below.
NOTE:
• The battery charger is for charging Makita TYPE battery cartridge. Never use it for other purposes or for other manufacturer’s
batteries.
• When you charge a battery cartridge which is new or has not been used for a long period of time, it may not accept a full
charge until after discharging it completely and recharging a couple of times.
• When you charge a battery cartridge from a just operated tool or a battery cartridge which has been left in a location exposed
to direct sunlight or heat for a long time, let it cool off. Then re-insert it and try to charge it once more.
• When you charge a battery cartridge which has not been used for a long period, sometimes the charging light will go out
soon. If this occurs, remove the battery cartridge and re-insert it. If the charging light goes out within one minute even after
repeating this procedure a couple of times, the battery cartridge is dead. Replace it with a new one.
• The charging time can become longer due to a battery and temperature.
To maintain product SAFETY and RELIABILITY, repairs, any other maintenance or adjustment should be performed by a Makita
Authorized Service Centers, always using Makita replacement parts.
Voltage 9.6 V 12 V 14.4 V 18 V
Capacity
(Ah)
Charging time
(Minutes)
Number of cells 8 10 12 15
Ni-Cd
Battery cartridge
9050 1250 1450 1850 1.3 60